Razor-stropping machine.



R. S. OTIS.

BAZOR STB.OPPING MACHINE.

nrmcnmn nun: FEB. 4. 1913.

Patented Den. 9. 1913.

S TEM OFFICE.- v

RALPH S O'1IS, OF WEST HAB'IFOBD. CONNECTIGUT.

BAZOB*STROPPING MACHINE.

1,08 776. Sp=e1ficationofLettershtcn PatentedDec.9, 1913.

' v Application filed1ebruary4, 1913. smum. 746,147. ;4"'

T0 all whom z't may concem: journaled in the ends of the czlrr izige 1.7

Be it kmwn that I, RALPH S. OTIS, a citia sleeve, part of the device for moving the zen of the United States, rsiding at West Made-holder, 18 a spirally grooved shaft Hartford, in the county of Hartford and sfationary in said frame, 19 a rocking shzift, 0

5 State of Cor'mecticut, have invented a new journaled ab its ends in said frame, 20 a lug and usefi1l Razor-Stropping Mahine, of extending from the rocking shaft, 21 a.

which the following is a. specifi cation. blade-holder rigidly attached to said rdck My i nvention relates to razdr stropping ing shaft, 22-23 centering spring whii;h machines of the dass through which a strop Pass through openings in the carriage. 13 5 10 IlS threaded and is to be alternately pulled and are loosely secuted in the fmm12.

at its ends, a'nd a Made-holder loqated be- The.frame 12 is-provided at tl1e fop Witlf tween the reaches of the strop anal adapted a drziwn out section'24, to receive a .=lc p- 10 alternately carry tlie -blade thereto as 25, by whi cl1 the machine inay be' a'ttahed said reaches are alternately pulled gut; to any convenient restrainingobjet. Holes 70 15 wardly in line with their length, tl1e bl'ade are pierced in the ends of said frame for 1novi ng t0 011e reach as it is pulled outwardly the. ends of the spirally gioVd shaf't 18,

and to tl1e other reach When it is pulled Outthe rocking sl1aft 19, and the centering wardly, and said invent-ion consists in the springs 2223.

novel features hereinafter described, and The friction -rollef 15-15 is a. plain 75 particularly pointe'd out in the claims. smooth roller, having a portion reduced in The object of the invention is t0 provide diamefer for the Sleeve 17, said Toller 'enan efl1cient stroppi ng machine of the dass C0mpassing the spirally gr00ved shaft 18.

referred t0 and more particularly a strop- Said roller 151 5 may rotate in eithet diping machine possessing in addition to rscti0n, and wifen rotated will travel end? 3 25 meanS for rocking th e blade-holder from wise along the spirally grooved shaft 18, by

one side to the other as the alternate reaches means of 111118. 01' stnds within said rolle'n of thestrop are pulliad, novel mechanism l515 being engaged in 'tl1e spiml groove for causing the stropto travel along the '0f the slmft 18. The sleeve 17 snugljfl 'razor blade lengthw1se, said motion, comthough freely encircles a reduced portion of3g5 I bined with themoti on of said Stl0p from tl 1e roller 1515. Said Sleeve 17 is proback to edge of the razor blade while the Vlded With extnd1ng lugs 3636, and is blade is against the alternately outwa.rdly part of the device for moving the blademoving reaches of the strop, causing a di holder, as hereinafter described.

agonal st-ropping cf the blade, thereby giv- The rocking shaft 19 is journaled at its 90 ing substantially the same treatment that it ends in the ends of frame 12, said sha.ft hav' would receive if stropped by band, but with ing an extending lug 20, to engage the lugs.

a more accurate and uniform moti on. 3636 of the sleeve 17, und means providedi? The Prime purpose 0f the invention is to to attach the Made-holder 21 130 Said shaft 19. provide 1 stroppmg machine which is sim- The Made-holder 21 comprises a pair of 95 40 ple in construct-ion, efficient and durable. C OnVerging jaws 0f known character. and a The invention will be readi ly understood spring 37 as usual, and the ends ofsaidbladefrom thedetailed description which folholder are formed to be rigidly attached to lows, reference being required to the acthe rocking shaft 19. compahying drawin,gs, in which The narriage 13 is provided with bearings 100 Figure 1is a substantially central vertical for the friction-roll'er 15'15, and bearings longitudinal sectin through a stropping that are a slidable fit on the rocking shaift 19. machine einbodying my invention, the strop OPenings for the cen'tering springs 22-23, being part ly broken away and the secti0n and openings 26 to allow said carriageto 1 being on the dotfed line 7 -7 of Fig. 2. travel endwise 0f the blade=holder 21. Also 105.

2 is an end view of the machine. Fig. 3 1s the usual studs or pins, 27, 28, 29, 30, 31, 32,

an enlargdd cross sectional view of the mafor guiding thereaqh es oft he strop:-l4g 1 chine. Fig. 4 is a top view of t he maphiney. .nentering sp1rings 22+,23 shm ?;zj., in the m n swl fidilflgi sfl ut eir m tlw 1 t bn whi =mv bQ-f riage 13. .17 in the drawing is a sleev e .cbnta;ining a.fsafety razor blade, will be in- ;45gttafiel'iidise'a along the stationany spirally -99-spirnlly;gmovtzd"shaft 18, will canse the 22-23 being11qld in position near their ends in frame-l2'q ;The strpf-l4 thr6aded through theeurriage 13, und is folded over the friction- -5 roll"er -15 and the sleeve 17; the rockin g 'sh-fi; 19', the Made-holder 21, and the centerv .ing springs 22-23, being located niidway betwe en the reaches of' said Str0p 14.

Thg v fol lowing is a detailed description J,O offlie constructionofthe 'frietion-roller J-{y415gahd the mechanism for'moving the blade hblfler 21: 33-33 am tubes of cylin- .dfical for i hI-" 34-34 is a tube ofoylindrical -fbl lfi,-snugly fitting within tubes 33-33 and 15 att-ildied' to said tubes. 35-35 are mfi's'w'ithin tube 3434 und firmly attached to said tubd The ends .of tube 34-34 extend bqyond; the ends of tubes 33-33 and form journals -tofit the bearings in the carsfiglyl'fittixig the tube 34-34, but allowing sa;id' tl1be t move :freely', with a rotary motidri, ins'aid sleve 17. Lugs 36-36 extend ffon1 sleeve 17 and engage lag which ex- 'fr0n'1 the'rocking shaft 19. The rock- 19, tlie Ing-20 and the blade-holden 2 l-are finnlyhttached to each other. Theie- ;fb!i 'as t-he Ing 20 is normally held in a can- 'ijsitin betweenthe reaches of the strop ,j.'bY the ce ntering springs 22-23, the

blinde-holder is also:held in a central posi- .fi'onrbetween the reaches 'o'f said strop.

III! t he lemployment of the machinqthe r '.zor blada; pr the usual safety-blade-holder ping df the*blde. A pull downwardly on 9 t he' righi; band r'each of the strop 14:, see Fig.

3; willcause the opposite mach of the strop 1 tp movg 'upwardly und over the 1'011er 15-15 -a md tliereliy 'rotate the same, and through 'the.nut s. -35 cause the r 01ler.1515 to g1"o'n'ved liaft 18, and at thesame time the 1'mov'emmt of the strop 14 on the sleeve 17,

will canse t-he lugs 36-36 to take the posi- .-J;ion showu in 'Fig. 3 und rock the bladeholde'r 21 to ca'rrp'7 and hold th e blade 38 in -ostnitact; with sa.id Iight band reach of the strop, -i;hepresxs'ure of the blade being gevpeniiad'"bjthe force of the pull on said reach '1 #lidithprefote controllable by the operator.

T '-the downwxrd pull on the rightband reach o'f the strop 14 against the edge '0f fl1e blade 38; und 'the rotation of the i;qll'er 1"5-15, said rollbr rotating on,- and at fl1q' samet img moving endwise along the Z:zi r1'iagij13iand st rop 14 to travel in a line jco'rrespondingto 'the endwise travel of the 5 1ollbr' 15-15,bY 1Q3eans of the bearings of aid Carriage 13o1a tl 1e ends o fthe roller endwise motion of the 1'01181 15-15 will cause a; diagonal motion of the strop 14 across the raz0r 'blade, stroppingsaid razor blade in the n1ost approved and effectual manner.

When the pull on the right band mach Cf t-he strop is released, t-he leftband spring 22 will instzmtly move the Made-holder to Withdraw the blade from said reach, and thereupon when the 1eft band reach of the strop,

see Fig. 3, is pulled downwardly, the roller 15-15 will be given a rverse rotation thereby, and the lugs 36-36 will be, by action of th'e strop 011 the sleeve 17, reversed in position; tlmt is, turned from the position on the left; shown in Fig. 3, .t0 a position on the right, and in their said inovement, said lugs 36-36 Will cau'se the Made-holder t0 carry the blade to said left band reach of t'he strop being pulled downwardly During the reverse rotation of the 1301161 15-15, While the left hand'reach of the str0p is being pulled' downwardly, said roller. will travel endwise in a reverse direction t0 that effected during the downward movement of the right band reach of the stropl Therefore as the alternate reaches of the strop zue pulled, the-lugs 36-36 are turned t0 moy" the Made-holder to that reach of the strop inoving outwardly, and the roller is rotated t0 efi'ect the endwise travel of said roller, causing the narri'age 13 and strt p 14 t0move along said blade-holder lengthwise, said Made-holder being turned to one side and then the othe1, und said carria e 13 caused to-tiavel in one direetion and t1en the other as the reaches of the strop are alternately pulled outwardly.

I have shown und described in detail the best form of the invention known to me, but I do not cf course limit my invention 1:0 all the details presented, for I am aware (hat such details may be modified in many respects withqut departing from my invention.

I claim as my ir'1vent1on and desire to secure by Letters Patent:

1. A razor stropping machina comprising a fraine, a spirally 'gro'oved shaft, stationary in said frame, a rocking shaft journaled at its ends in said frame, said shaft having a Ing extending toward the spirally grooved shaft, a razor blade-holder rigidly attached to saidrocking shaft, a, friction roller encompassing the spirally grooved shafi s sa1d roller havmg nuts or studs engaged In the spiral groove of said-shaft to eflect endwise travel of said roller during its rotation, a

carriage with bearings fitting the ends o f said roller, a strop folded .over said roller,

shafts aiid holder, and guided in said ar riage, and mezins to be 'actuated by t he str0p for turning the blade-holder fio the r each of the strop -pulled outwardly; substant1ally as set forth.

2, A. razot stropping n1gighine oomp 'ising 13 2 1 frarn(iiifsiiiifaily grooved shaft stationary m sa1d frame, a rock'mg shaft journaled in seid frame, saiidshaft having alug extendi11gtoward the s'pirally grooved shaft, a.

bladeholder firmlj attaehed to seid rocking shaft' a movable fri'ctionroller surround- 1ng a portion of the spirallj groved shft,

sa1d roller having a art engaged in the s'piral groo ve of seid s aft to effect endwise movement ofsaid roller during its rotation, a sleeve freely fitting a reduced portion of' said roller, saidl.sheve having l ugs to engage withthe lug extending from the rockmg shaft, .thereby -transrnitting motion to the rocking 'shaft, andthrough seid rocking sh&ft an oscil lating motion to the blade holder, a carriage with bearings fitting the friction roller""and rocking shaft, a strop folded over seid? roller, sleeve, shafts and holder, and guid ed in said carriage, said Stl0 when actu'ated, caus'mg the blade hol er to turn to the mach of the strop .pulled outwardly; substantially as sei: fm-th.

A razor stropping machirle comprising "1 1 l -frame a locking shaft with firmly attaehed razbr-blade holder, in seid frame, a spirally grooved, stationary shaft in seid 'frarne,' agiricti0n roller somewhat sborter heel he me, surrounding a portion of n opert1ve comr.-ction between '1 thef r-olle r end shaft, a sleeve fitting a porti0n of said roller, bat allowing sa1d roller to rotate within the sleeve, an opersaid strop when reciprocated, actua ting the roller, thereby eausing the Carriage to recipro'catewithin the frame, through the connectioi1 of said carriage and roller, substantially as sei; forth.

4. A razor stropping xriachine comprising a frame, a rocking shaft with firmly at tached razor-blade holder, in seid frame, a spirally grooved, stationary shaft in S21id frame, a movable friction roller surroundinga portion of said shaft, an operative connection between th'e roller und shaft, a sleeve fitting a portion of seid roller, an operative connection between the sleeve and 'roeking shaft, reclprocstory carriage mounted' 011 the friction roller und slidable on the rocking shaft, a strop threaded thr0ugh the carriage and folded over the blade holder, 'shafts and roller, said strop when actuated, moving diagonally within the frame, through the rotry and simultaneous endwise movernent of the friet ion roller, thereby ca'u'sing a diagonal stropp1ng of the razor blade, substantially as set forth.

RALPH S. OTIS. Witnesses:

PAUL S. CLUETT, HERMAN C. MAR UARDT. 

